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ERROR: Execute On Error


\begin{command}
\item[\textbf{Form: } ERROR VISTA\_command\hfill]{}
\item[VISTA\_command]{is any valid VISTA command.}
\end{command}
ERROR tells VISTA to execute the given VISTA command whenever an execution error occurs. The command can be any VISTA command but is quite often a GOTO command. VISTA_command can not contain multiple commands separated by semicolons.

  1.   ERROR GOTO WHEREVER
      Any number of procedure lines...
      WHEREVER:
      The next commands to be executed after an error...
    
  2.   ERROR ERRFLAG=1
      Sets the VISTA variable ERRFLAG to 1 upon an error.
    



Jon Holtzman 2002-02-13